Gamo Whisper Fusion DB 4.5mm Air Rifle for longer periods of time, less noise, less recoil, and a trigger you can personalize. The SAT is a custom made trigger designed for all disciplines of shooting. The SWA (Shock Wave Absorber) improves the recoil distance and provides up to 74% more absorption than standard recoil pads. The Whisper Fusion technology is the ultimate noise reduction technology designed for the most demanding shooters.